Home
Gemstones


Pumpellyite and Anthophyllite Optical Properties


Anthophyllite and Pumpellyite Optical Properties


Optical Properties

Luster
Fibrous   
Vitreous, Pearly   

Pleochroism
Not Available   
When Fe-rich   

Dispersion
Not Available   
Not Available   

Transparency
Gemmological Tables (2004)   
Transparent   

Refractive Index
1.674-1.764   
1.603-1.690   

Optic Character
Not Available   
Biaxial/+   

Crystal System
monoclinic   
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma   

Birefringence
0.014-0.016   
Not Available   

Clarity
OpaqueUlrich Henn and Claudio C. Milisenda   
Transparent   

Benefits >>
<< Physical Properties

Pumpellyite and Anthophyllite Optic Character

Pumpellyite and Anthophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Pumpellyite and Anthophyllite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Pumpellyite and Anthophyllite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character. Anthophyllite has Biaxial/+ character.

Compare Green Gemstones

Pumpellyite and Anthophyllite Transparency

Similar to their colors, Pumpellyite and Anthophyllite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Pumpellyite is Gemmological Tables (2004) while Pumpellyite is Gemmological Tables (2004) in appearance.

Green Gemstones

Green Gemstones


Compare Green Gemstones